Switch.



No- 799,135- PATENTED SEPT. 12, 1905. A. BENASSY. SWITCH.

APPLICATION FILED DEC. 17, 1904 E ------I1l GT dz Jgr. 6

5 m 40mm mm @smm 601.14. GJOFMLL 7? mm {71mm 7 UNITED STATES PATENT onrron.

' ANTOINE BENASSY, OF GENEVA, SWITZERLAND.

SWITCH.

Specification of Letters Patent.

Patented Sept. 12, 1905.

Appiication filed December 17, 1904. Serial No. 237,200.

To all whom it may concern:

Be it known that I, ANTOINE BnNAssY, manufacturer, of Geneva, Switzerland, have invented certain new and useful Improvements in and Relating to Switches, of which the fol lowing is a specification.

My invention relates to improvements in electric switches; and the object of my invention is to provide a switch for electric circuits, as the lightingcircuit of motor-cars, which shall be simple in construction and efiicient in operation and which shall embody means that prevent tampering with the mechanism.

In the drawings illustrating the principle of my invention and the best mode now known to me of applying that principle, Figure 1 is a front View of the base-board of the switch. Fig. 2 is a central sectional view through my new switch, the circuit being shown as interrupted. Fig. 3 is a detail view showing the base of the cap, the parts being in the position shown in Fig. 2. Fig. 4 is a detail view showing the interior of the locking-cover. Figs. 5 and 6 show forms of keys, and Fig. 7 is a transverse section of the keys shown in Figs. 5 and 6 and is the same for both forms of key.

The base-board a, Fig. 1, is made of insulating material and is provided with circuitterminals 6 and 0, the gap between which may be bridged by a lever (Z, pivoted upon the terminal 6 and controlled by a spring d, which tends by its tension to force the free end of the lever d into contact with the terminal c. and thereby to make thecircuit.

Upon the base a is mounted a cap 6, in which is slidably fitted a boltf, the lowerend of which iscontrolled by a spring II,- that tends to force bolt f upwardly out of the cap 6. (See Figs. 2 and 4..) The bolt f is stepped, as best shown in Fig. 2, and the spring-blades h, mounted in the cap-cover Fig. 4c, are adapted to engage in the steps or notches f f of the bolt f to retain the latter in the positions determined by the steps f f. In Fig. 2 the blades it are shown in engagement with the step or notch f The cap-cover g is secured to the cap a in the following manner: Projecting from the inside of the cap-cover g are two tenons 7a 71;, both of which are circumferentially grooved, as indicated by the dotted lines in Fig. 4. The base of the cap 6 is formed with two keyholeshaped slots H, which are slightly curved and which are adapted to cooperate with the tenons 7t respectively. The tenons are passed through the larger end of the slots Z Z and the cap-cover g is then turned slightly, so as to bring the reduced portions of the tenons 7c 70 into the narrow portion of the slots Z. The spring-blades are then engaged in one of the steps ff' by forcing down the boltf the proper distance. Thus the cap-cover g is locked in place upon the cap 0.

To release the bolt f from the blades hand the cap-cover g from the cap the following provision is made: As shown in Fig. 3, the

face of the boltf is fluted or corrugated and.

is provided with flanges which project out beyond the ridges of the fluted surface. The inside of the cap-cover g is also fluted, as shown at 1, Fig. 4E. The flanges f maintain the cap-cover g at a distance from the face of the boltfsuch that a keyway exists between the two members f and suitable for the passage of one or the other of the fluted keys m m. (Shown in transverse section in Fig. 7 and in elevation in Figs. 5 and 6.) The ridges and grooves formed on these keys are of course adapted to lit the ridges and grooves of the keyway formed between the bolt f and the cap-cover r The key m is longer than the key m, the latter being of only sutficient length to reach the step f and to disengage the blades /L therefrom, while the key m is of sufficient length to disengage the blades It from either the step f or from the step f.

By means of the key on the blades it are disengaged from the step f thereby permitting the spring 71, Figs. 2 and i, to force the bolt f up until the step f engages the blades it. In this position the cap-cover r is still locked upon the cap 0, for obviously the blades it prevent the rotation of the cap-cover 7 when they are engaged with either of the steps f f By using the key m the blades it may be disengaged from both steps of the bolt f, thereby allowing the boltf to be withdrawn and the cap-cover 5 turned for purpose of removal. When the key m is used and the blades A pass from engagement with the step f to engagement with the step f, as above described, the lever-(Z contacts with the terminal c and makes or completes the circuit.

What I claim is v1. The combination in an electric switch of a base provided with terminal posts; a lever mounted on said base for bridging the gap between said terminal posts; a cap mounted on said base; a bolt adapted to control said IIO lever, said bolt being slidably mounted in said cap; means for locking said bolt in position; and a releasing device for said means.

2. The combination in an electric switch of a base provided with terminal posts; a lever mounted on said base for bridging the gap between said terminal posts; a cap mounted on said base; a notched bolt mounted in said cap and adapted to control the position of said lever; and a cap-cover provided with springblades for engaging said notched bolt to maintain it in position.

3. The combination in an electric switch of a base provided with terminal posts; a lever mounted on said base for bridging the gap between said terminal posts; a cap mounted on said base; a notched bolt mounted in said cap and adapted to control the position of said lever; a cap-cover detachably secured to said cap and provided with spring-blades for engaging said notched bolt to maintain it in position; and means for releasing said bolt from said spring-blades.

4. The combination in an electric switch of a base provided with terminals; a make-andbreak device mounted upon said base; a device which shields said make-and-break device and interlocks therewith and with said base; and means for releasing said devices from each other.

5. The combination in an electric switch, of a base provided with terminals; a make-andbreak device mounted on said base: a cover for said make-and-break device; and means for interlocking said cover and device.

6. in combination in an electric switch, a base provided with terminals; a make-andbreak device mounted on said base; a cover for said make-and-break device; means for interlocking said cover and device; and means for controlling said make-andbreak device and disengaging said cover therefrom.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

E. THEE-SCHNEIDER, L. H. MUNIER. 

